Biology HESI A2 Practice Exam

Questions 24

HESI A2

HESI A2 Test Bank

Biology HESI A2 Practice Exam Questions

Question 1 of 5

Which type of sugar is a disaccharide?

Correct Answer: A

Rationale: The correct answer is A: Sucrose. Sucrose is a disaccharide composed of one molecule of glucose and one molecule of fructose. It is formed by a condensation reaction between these two monosaccharides. Fructose (choice B), glucose (choice C), and galactose (choice D) are all monosaccharides, not disaccharides. Therefore, they are incorrect choices for this question.

Question 2 of 5

Which type of sugar is a disaccharide?

Correct Answer: A

Rationale: The correct answer is A: Sucrose. Sucrose is a disaccharide composed of one molecule of glucose and one molecule of fructose. It is formed by a condensation reaction between these two monosaccharides. Fructose (choice B), glucose (choice C), and galactose (choice D) are all monosaccharides, not disaccharides. Therefore, they are incorrect choices for this question.

Question 3 of 5

How should a researcher test the hypothesis that a particular species of bird vocalizes most in the hours around dawn?

Correct Answer: C

Rationale: The correct answer is C because observing the birds in the wild and recording them in predawn and postdawn hours every day for six months allows the researcher to capture their vocalization pattern accurately. This method ensures that the data collected cover a wide range of time periods and seasons, providing a comprehensive understanding of when the birds vocalize the most. Choice A is incorrect because observing birds in captivity may not reflect their natural behavior, and recording at two-hour intervals might miss the peak vocalization times around dawn. Choice B is incorrect because observing the birds in the wild at one-hour intervals in several seasons could provide useful data but may not specifically target the hypothesis about vocalization around dawn. Choice D is incorrect because comparing recordings of different species does not directly address the hypothesis about the vocalization pattern of the particular bird species around dawn.

Question 4 of 5

Which of the following is a tertiary consumer?

Correct Answer: A

Rationale: The correct answer is A: Owl. Tertiary consumers are organisms that feed on secondary consumers, which in turn feed on primary consumers. Owls primarily prey on small mammals like shrews, making them tertiary consumers in the food chain. Shrews (choice B) are secondary consumers, grasshoppers (choice C) are primary consumers, and wheat (choice D) is a producer. Therefore, the owl is the only choice that fits the definition of a tertiary consumer in this context.

Question 5 of 5

Which form of fermentation is used to produce beer?

Correct Answer: D

Rationale: The correct answer is D: Ethyl alcohol fermentation. Beer production involves the conversion of sugars into ethyl alcohol and carbon dioxide by yeast through the process of fermentation. Lactic acid fermentation (A) produces lactic acid, not ethyl alcohol. Acetic acid fermentation (B) produces acetic acid, not ethyl alcohol. Propionic acid fermentation (C) produces propionic acid, not ethyl alcohol. Therefore, option D is the only choice that aligns with the process of beer production.

Similar Questions

Join Our Community Today!

Join Over 10,000+ nursing students using Nurselytic. Access Comprehensive study Guides curriculum for HESI A2-HESI A2 and 3000+ practice questions to help you pass your HESI A2-HESI A2 exam.

Call to Action Image